Rehau FIREPEX Residential Fire Sprinkler System Installation guide
- Category
- Water heaters & boilers
- Type
- Installation guide
FIREPEX
®
RESIDENTIAL FIRE SPRINKLER SYSTEM
Design and Installation Guide
CONTENTS
For updates to this publication and the most current technical instructions, safety information and manufacturer’s recommendations, visit www.na.rehau.com/resourcecenter
1. Scope 3
2. Design & Applications 4
2.1 Applications 4
2.2 Types of Fire Sprinkler Systems 4
2.3 Piping Configurations 5
2.4 Design Considerations 6
3. System Overview 7
3.1 Application 7
3.2 Standards and Certifications 7
3.3 Warranty 7
4. RAUPEX PEXa Pipe 8
4.1 Pipe Properties 8
4.2 Pipe Dimensions and Weights 8
4.3 Pipe Markings 8
4.4 Pressure and Temperature Ratings 9
4.5 Excessive Temperature and Pressure Capability 9
4.6 Corrosion Resistance 9
4.7 Chlorine Resistance 9
4.8 Ultraviolet Resistance 9
4.9 Bend Radius 10
4.10 Chemical Compatibility 10
4.11 Freeze Break Resistance 10
4.12 Condensation 10
5. EVERLOC+ Compression-sleeve Fittings 11
5.1 Fitting Scope 11
5.2 Fitting Assembly 14
5.3 Installation Considerations 14
5.4 EVERLOC+ Compression-sleeve Tools 17
5.5 Fire Sprinklers 19
6. System Planning 21
6.1 Determine Local Jurisdiction Requirements 21
6.2 Obtain Residence Information 21
6.3 Identify Water Supply Source, Flow, Pressure 21
6.4 Determine Layout of Water Supply 22
6.5 Determine Sprinkler Requirements 22
6.6 Design Piping System Layout 23
6.7 Perform Hydraulic Calculations 23
6.8 Obtain AHJ Approval 23
7. Installation Considerations 24
7.1 Ensuring Design Meets Installation Guidelines 24
7.2 Mounting FIREPEX Sprinkler Fittings 24
7.3 RAUPEX Pipe Packaging 28
7.4 EVERLOC+ Fittings Packaging 28
7.5 Uncoiling Pipe 28
7.6 Bending Pipe 28
7.7 Distance Between Fittings 29
7.8 Pipe Protection 29
7.9 Supporting RAUPEX Pipe 30
7.10 Supporting EVERLOC+ Fittings 30
7.11 Copper Soldering 30
7.12 Kink Repair 31
7.13 Installing Sprinklers 31
7.14 Pressure Testing 31
7.15 Testing System Flow 32
7.16 Maintaining the System 33
2
This technical information applies to the REHAU FIREPEX
®
residential fire sprinkler system including the assembly and use
of the EVERLOC+
®
compression-sleeve fittings, RAUPEX
®
white
UV shield (PEXa pipe) and EVERLOC+ compression-sleeve tools,
intended for use in residential fire sprinkler systems.
For professional use only. Persons using this guide must be experi-
enced and appropriately licensed fire sprinkler system designers or
installers, who have an understanding of the principles and practices
for system design and installation.
The information presented in this guide is intended to demonstrate the
proper design, assembly method and installation recommendations for
the FIREPEX system but is not specific to your project conditions. It is
the responsibility of the licensed professional to check the prevailing
local codes and to verify that technical information presented in this
guide is appropriate for a particular installation.
Nothing in this guide supersedes national or local code requirements
or the recommendations of other manufacturers regarding their
components. Observe all applicable national, state and local laws,
regulations, standards codes and ordinances. If you believe REHAU
product information conflicts with applicable code requirements,
industry standards, or the recommendations of other manufacturers
regarding their components, contact the REHAU distributor in your
area and consult with the building authority having jurisdiction before
installing the FIREPEX system.
Before starting the design process, read the REHAU PEXa Limited
Warranty, available at www.na.rehau.com/warranties. It can also be
obtained from your authorized REHAU distributor or by writing to
REHAU Construction LLC, 1501 Edwards Ferry Road NE, Leesburg VA
20176 US.
Proper installation is the responsibility of the installing contractor.
Review the REHAU Technical Guidelines prior to installation of the
FIREPEX system. REHAU Technical Guidelines are defined in the
REHAU PEXa Limited Warranty as: The most current and applicable
versions of all the technical literature available on the REHAU North
America website at www.na.rehau.com/resourcecenter, including, but
not limited to, technical manuals, instruction guides, technical
bulletins, submittals and REHAU Academy training presentations.
Check the REHAU Resource Center for the latest updates
(www.na.rehau.com/resourcecenter).
Contact the REHAU distributor in your area if you do not understand
the information in this manual or if you have questions about the
REHAU Technical Guidelines.
This guide contains safety-related information that requires your
special attention. It is indicated with the safety alert symbol and the
signal words described below:
DANGER
Indicates a hazardous situation which, if not
avoided, will result in death or serious injury.
WARNING
Indicates a hazardous situation which, if not
avoided, could result in death or serious
injury.
CAUTION
Indicates a hazardous situation which, if not
avoided, could result in minor or moderate
injury.
NOTICE
Indicates a risk of property damage
Only trained personnel should be engaged in the installation process.
Follow the instructions in this guide and other REHAU Technical
Guidelines and use common sense to reduce the risk of injury or
property damage.
WARNING
Read the instruction manual for the EVERLOC+
compression-sleeve tools before use and follow all
safety precautions — improper use can cause
serious personal injury.
WARNING
EVERLOC+ compression-sleeve tools use a strong
hydraulic force to expand PEXa pipe and compress
components of the REHAU EVERLOC+
compression-sleeve system.
To reduce the risk of crush and laceration injury,
keep fingers, hands and all parts of your body away
from the expander head, hydraulic slide and
compression jaws during operation. Remove the
battery before attempting to change or adjust the
expander head or compression jaws.
DEWALT
®
and the DEWALT logo are trademarks of Stanley Black &
Decker, Inc., or an aliate thereof and are used under license.
MAKITA
®
is a trademark of Makita Corporation, or an aliate thereof.
1. SCOPE
3
2. DESIGN & APPLICATIONS
2.1 Applications
The FIREPEX residential fire sprinkler system serves the requirements
for fire sprinkler systems as defined by National Fire Protection
Association (NFPA) Standard 13D Installation of Sprinkler Systems in
One- and Two-Family Dwellings and Manufactured Homes and the
International Residential Code Section (IRC) P2904.
The purpose of NFPA 13D and IRC P2904 is to provide a sprinkler
system that aids in the detection and control of residential fires, thus
oering improved protection against injury and loss of life. A sprinkler
system that is designed and installed in accordance with this standard
is expected to prevent flashover (total involvement of the fire) in the
room of fire origin, where sprinklered, and to improve the chance for
occupants to escape or be evacuated.
RAUPEX white UV shield pipe and EVERLOC+ fittings are approved
for use in residential fire sprinkler systems as defined by NFPA 13D
and IRC P2904 for a variety of residential applications including single-
or two-family homes, town homes, modular homes and manufactured
housing.
Fig. 2.1: FIREPEX installation
2.2 Types of Fire Sprinkler Systems
The NFPA 13D standard categorizes all fire sprinkler systems within
two general types: wet pipe systems and dry pipe systems.
- Wet pipe systems are filled with water and installed in areas not
subject to freezing.
- Dry pipe systems are not filled with water, and can be located in
unheated areas subject to freezing.
The FIREPEX system is for wet pipe systems only.
Within the wet pipe systems, NFPA 13D defines the layout of systems
under the following types, for which the FIREPEX system can be
installed:
- Multipurpose Sprinkler System
- Passive Purge Sprinkler System
- Stand-alone Sprinkler System
2.2.1 Multipurpose Sprinkler Systems
Multipurpose systems are defined in NFPA 13D and IRC P2904 as a
piping system intended to serve both fire sprinklers and domestic
plumbing needs. A multipurpose system integrates the piping
connected to a water supply with sprinklers that automatically
discharge water over a fire area. All piping in a multipurpose system
supplying sprinklers must be listed or conform to the piping specifica-
tions in NFPA 13D or IRC P2904.
Water Heater
To Domestic Hot Water
City Water Main
Water Meter
T/P Relief Valve
Domestic Cold Water
Domestic Hot Water
Fixtures
Service Line
Fire Protection
Domestic
Fixture
Domestic
Fixture
Domestic
Fixture
Fire Sprinkler
Fire Sprinkler
Fig. 2.2: Multipurpose system
4
2.2.2 Passive Purge Sprinkler System
A passive purge system is defined in NFPA 13D as a type of sprinkler
system that serves a single toilet in addition to the sprinkler system.
Water Heater
To Domestic
To Domestic Hot Water
Cold Water
City Water Main
Water Meter
Single
Toilet
T/P Relief Valve
Domestic Cold Water
Domestic Hot Water
Fixtures
Service Line
Fire Protection
Fire Sprinkler
Fire Sprinkler
Fig. 2.3: Passive purge system
2.2.3 Stand-alone Sprinkler System
A stand-alone system is defined in NFPA 13D as a type of sprinkler
system where the above ground piping serves only fire sprinklers.
Water Heater
To Domestic
To Domestic Hot Water
Cold Water
City Water Main
Water Meter
T/P Relief Valve
Domestic Cold Water
Domestic Hot Water
Service Line
Fire Protection
BFP
Pressure Relief Valve
(set 130 psi)
Drain & Test
Connection
Fire Sprinkler Fire Sprinkler
Fig. 2.4: Stand-alone system
NOTICE
These drawings represent design intent and concept only. This
technical information is not intended to be used as final drawings or
specifications. It is provided only as an aid in designers' development
of the final specification and is not intended as a substitute for sound
judgment.
2.3 Piping Configurations
The NFPA 13D standard defines three types of piping systems that
are allowed to be used in residential occupancies stating that piping
configurations shall be permitted to be gridded, looped or straight-
run, or to be combinations thereof.
Of the three aforementioned configurations:
- Gridded systems provide the highest level of hydraulic
characteristics for pressure/flow calculations.
- Looped systems provide hydraulic characteristics better than
straight-run systems, but not as good as gridded systems.
- Straight-run system provide the lowest level of hydraulic
characteristics.
2.3.1 Gridded System
A gridded system is a sprinkler system connected by multiple branch
lines. An activated sprinkler will be provided with water from both
sides, while other branch lines help transfer the water.
City Water Main
Water Meter
Domestic Cold Water
Domestic Hot Water
Fixtures
Service Line
Fire Protection
To Domestic
Hot Water
Fig. 2.5: Gridded system layout
5
2.3.2 Looped System
A looped system is a sprinkler system where multiple cross mains are
connected, but the branch lines are not.
City Water Main
Water Meter
Domestic Cold Water
Domestic Hot Water
Fixtures
Service Line
Fire Protection
To Domestic
Hot Water
Fig. 2.6: Looped system layout
2.3.3 Straight-run System
A straight-run system, also known as a tree-type system, is a
sprinkler system in which each sprinkler is served by only one water
flow path.
City Water Main
Water Meter
Domestic Cold Water
Domestic Hot Water
Fixtures
Service Line
Fire Protection
To Domestic
Hot Water
Fig. 2.7: Straight-run system layout
2.4 Design Considerations
The critical points in design of an NFPA 13D and IRC P2904 sprinkler
system are:
- Identify local jurisdiction requirements, including determination of
pertinent building, fire protection and plumbing codes.
- Obtain residence characteristics.
- Identify the water supply source and available flow in GPM and
supply pressure in psi.
- Identify the water supply service line including elevation dierence
between connections and routing of the service line into the
residence.
- Determine the specifications for the sprinklers including water flow
and operating pressure requirements and coverage area
specifications.
- Lay out the piping system in the residence as a looped, gridded or
straight-run system as defined by NFPA 13D.
- Lay out the piping system for cold and hot water distribution.
- Perform the hydraulic calculations on the system to determine
system performance.
- Coordinate fire sprinkler installation with other building trades to
minimize installation/scheduling conflicts. Verify installation of
sprinkler system per plan (includes sprinkler locations and proper
mounting height).
- When the fire sprinkler system connects to plumbing fixtures it is
required to comply with prevailing local plumbing codes.
NOTICE
The FIREPEX system shall not have a fire department connection and
the static pressure of the system shall be limited to 80 psi. If the static
pressure of the water supply is not less than 80 psi, a pressure
reducing valve set no higher than 80 psi shall be used. When a
pressure reducing valve is required, an automatic means of pressure
relief shall be installed on the sprinkler system side of the pressure
reducing valve.
6
3.1 Application
The FIREPEX residential fire sprinkler system includes RAUPEX white
UV shield (PEXa) pipe, EVERLOC+ polymer and lead-free brass
fittings, PEXa compression sleeves and EVERLOC+ compression-
sleeve tools.
The EVERLOC+ compression-sleeve fitting system is a cold-
expansion PEXa fitting system available in polymer and lead-free (LF)
brass, assembled with a specially designed PEXa compression sleeve.
The fittings are designed specifically for use with RAUPEX pipe and
must only be assembled with EVERLOC+ compression-sleeve tools.
Fig. 3.1: RAUPEX white UV shield crosslinked polyethylene (PEXa) pipe
Fig 3.2: EVERLOC+ compression-sleeve fittings and PEXa compression sleeves
3. SYSTEM OVERVIEW
Fig. 3.3: EVERLOC+ compression-sleeve tools
3.2 Standards and Certifications
RAUPEX white UV shield pipes are certified for use in residential fire
sprinkler systems as defined by NFPA 13D or IRC P2904.
RAUPEX red and blue UV shield are not certified for fire sprinkler
systems.
The FIREPEX system is third-party certified by NSF International
(www.nsf.org) to the following standards:
- UL 1821 Standard for Thermoplastic Sprinkler Pipe and Fittings for
Fire Protection Service
- ASTM F877 Standard Specification for Crosslinked Polyethylene
(PEX) Hot- and Cold-Water Distribution Systems
- CSA B137.5 Crosslinked Polyethylene (PEX) Tubing Systems for
Pressure Applications
- NSF/ANSI 14 Plastic Piping System Components and Related
Materials
- NSF/ANSI 61 Drinking Water System Components and Related
Materials
- NSF/ANSI 372 Drinking Water System Components – Lead Content
(complies with the lead-free requirements of the U.S. Safe Drinking
Water Act)
3.3 Warranty
RAUPEX UV shield pipe and EVERLOC+ compression-sleeve fittings
and sleeves are backed by a 25-year limited warranty. EVERLOC+
compression-sleeve tools are backed by a 2-year limited warranty.
REHAU oers this warranty when the installation is carried out in
accordance with the requirements outlined in the REHAU PEXa
Warranty 855.018, which is available as a separate document at
www.na.rehau.com/warranties.
7
4. RAUPEX PEXa PIPE
4.1 Pipe Properties
Crosslinked polyethylene is polyethylene (PE) which has undergone a
change in molecular structure whereby the polymer chains are
chemically linked, crosslinked (X), with each other to form a three-
dimensional network. The result is a flexible thermoset polymer with
improved mechanical, thermal and chemical properties.
There are three methods of manufacturing PEX:
- The peroxide method (PEXa), ASTM requires a minimum of 70%
crosslinking
- The silane method (PEXb), ASTM requires a minimum of 65%
crosslinking
- The radiation method (PEXc), ASTM requires a minimum of 65%
crosslinking
RAUPEX pipe is manufactured using the peroxide method (PEXa),
which yields the highest, most consistent level of crosslinking. PEXa
technology enhances flexibility and thermal memory, providing ease of
handling and kink repair compared to PEXb and PEXc.
PEXa has distinct advantages over other polymer and metal pipes:
- Resists pitting and stress corrosion
- Resists scaling and deposit build-up when used with both hard and
softened water
- Minimizes noise that is transmitted through pipes
- Resists notching and abrasion damage
RAUPEX is manufactured by REHAU in a facility whose quality
management system is ISO 9001 certified. In addition, RAUPEX
production is independently monitored annually by NSF International,
CSA Group and Underwriters Laboratories Inc. (UL).
Table 4.1: RAUPEX Properties
Specification English SI Standard
Minimum
Density
58 lb/ft
3
926 kg/m
3
ASTM F876
Minimum
Degree of
Crosslinking
70% 70% ASTM F876
Max Thermal
Conductivity
2.84 Btu in/(ft
2
˚F•hr) 0.41 W/(m˚K) DIN 16892
Coecient of
Linear
Expansion
9.33 x 10-4 in/ft ˚F
@68˚F
1.33 x 10-3 in/ft ˚F
@212˚F
0.14 mm/(m˚C)
@20˚C
0.2 mm/(m˚C)
@100˚C
Mean @
20-70˚C per DIN
16892
Modulus of
Elasticity
87,000-130,500 psi
@ 68˚F
43,500-58,000 psi
@176˚F
600-900 N/mm
2
@20˚C
300-400 N/mm
2
@80˚C
Minimum @
20˚C per DIN
16892
Specification English SI Standard
Tensile
Strength
4194-4355 psi
@68˚F
2610-2900 psi
@176˚F
per ASTM D638
26-30 N/mm
2
@20˚C
18-20 N/mm
2
@80˚C
per ASTM D638
--
IZOD Impact
Resistance
No Break No Break --
Roughness e=0.00028 in. e =0.007 mm --
Temperature
Working Range
-40 to 200˚F -40 to 93˚C --
Maximum
Short-term
Exposure
150 psig @ 210˚F
(48 hr)
1035 kPa @ 99˚C
(48 hr)
ASTM F876
UV Resistance See TB218 ASTM 2657
4.2 Pipe Dimensions and Weights
RAUPEX white UV shield pipe for residential fire sprinkler systems is
available in nominal sizes ranging from 3/4 to 2 in., and is in accor-
dance to the dimensional standards defined in ASTM F876 and CSA
B137.5. RAUPEX is copper tube size (CTS) outside diameter (OD),
which means that the actual OD of the pipe is 1/8 in (3.18 mm) larger
than the nominal size.
Wall thickness is defined by the standard dimensional ratio (SDR).
RAUPEX UV shield pipe is SDR9, which equates to the outside
diameter being approximately nine times the wall thickness. Since
PEX pipe has a thicker wall than copper tube, the inside diameter (ID)
is slightly smaller. However, since PEX pipe is not susceptible to the
erosion and corrosion issues of copper tube, systems can be designed
at higher velocities which allow for comparable sizing of a system.
Table 4.2: RAUPEX White UV Shield Pipe Dimensions and Weights
Pipe Size Average OD
in (mm)
Min Wall Thickness
in (mm)
Weight
lb/ft (kg/m)
3/4 in 0.875 (22.22) 0.097 (2.47) 0.10 (0.15)
1 in 1.125 (28.58) 0.125 (3.18) 0.17 (0.26)
1 1/4 in 1.375 (34.92) 0.153 (3.88) 0.25 (0.37)
1 1/2 in 1.625 (41.28) 0.181 (4.59) 0.35 (0.52)
2 in 2.125 (53.98) 0.236 (6.00) 0.60 (0.90)
4.3 Pipe Markings
RAUPEX pipe markings are repeated every 3 ft (0.9 m), list all
certifications and approvals, and include an incremental footage
marking to assist with installation.
8
4.3.1 PEX Designation Code
RAUPEX pipe is further identified with a PEX Material Designation
code in accordance to ASTM F876. The PEX Designation Code is the
abbreviation for the material - PEX - followed by four numerals.
The PEX Designation Code for RAUPEX white UV shield pipe is
PEX 3306
The first numeral (3) refers to the chlorine resistance in one of four
categories, when tested in accordance with ASTM Test Method F2023
and evaluated in accordance with ASTM F876. This measurement
indicates the allowable hours of 140°F water recirculation in 1 day.
0 = none
1 = 4 hours
e.g., 25% of lifetime
3 = 12 hours
e.g., 50% of lifetime
5 = 24 hours
e.g., 100% of lifetime
The second numeral (3) refers to UV resistance in one of four
categories, when tested in accordance with ASTM Test Method F2657
and evaluated in accordance with ASTM F876. The measurement
indicates the allowable time pipe can be exposed to UV without being
compromised.
0 = none 1 = 1 month 2 = 3 months 3 = 6 months
The third and fourth numerals (06) refer to the Hydrostatic Design
Stress for water at 73°F in hundreds of psi. The standard pressure
rating at 73°F is derived from this measurement.
06 = 630 psi
4.4 Pressure and Temperature Ratings
The maximum temperature and pressure ratings of RAUPEX pipe are
in accordance to ASTM F876, CSA B137.5 and PPI TR-3. The
designer shall determine the actual conditions and apply the appropri-
ate and additional design factors as required for any particular project.
According to the REHAU PEXa Limited Warranty, the RAUPEX pipe
warranty period is for operating conditions at or below 180°F (82.2°C)
in permitted applications when the handling, use, installation and
maintenance continually complies with all REHAU Technical
Guidelines.
Table 4.3: RAUPEX White UV Shield Pressure and Temperature Ratings
RAUPEX White UV Shield Pipe
Maximum Pressures and Temperatures Design Factors
160 psi @ 73.4°F (1055 kPa @ 23°C) 0.50 (per ASTM F876, CSA B137.5)
130 psi @ 120°F (900 kPa @ 49°C) 0.50 (per ASTM F876, CSA B137.5)
100 psi @ 180°F (690 kPa @ 82.2°C) 0.50 (per ASTM F876, CSA B137.5)
4.5 Excessive Temperature and Pressure Capability
Temperature and pressure (T&P) relief valves are safety mechanisms
in case the system overheats (mandatory in hot water distribution
systems). These valves act quickly to relieve excess temperature or
pressure if either one of these conditions is reached. In the event of a
water heating system failure or T&P relief valve failure, RAUPEX pipe
has been tested to accommodate short-term exposure conditions of
210°F (99°C) at 150 psi (10 bar) for 48 hours.
NOTICE
Failure to follow pressure and temperature limits may damage the pipe
resulting in leaks and operational failures, and will negate any
warranty provided by REHAU for RAUPEX pipes. The designer must
incorporate proper controls into the system to ensure the pressure and
temperature capability of the pipe is not exceeded.
4.6 Corrosion Resistance
RAUPEX pipe is non-reactive and displays excellent corrosion
resistance. Corrosion is a process that requires electrically conductive
materials and occurs on metals. PEXa, being a dielectric, does not
corrode like metal pipes. PEXa also resists the buildup of scale which
is common with copper pipe.
4.7 Chlorine Resistance
RAUPEX pipe has been tested in accordance with ASTM F2023,
Standard Test Method for Evaluating the Oxidative Resistance of
Crosslinked Polyethylene (PEX) Tubing and Systems to Hot Chlorinated
Water as required in ASTM F876. RAUPEX pipe exceeds the minimum
extrapolated test lifetime as certified by NSF for cold water applica-
tions, intermittent hot water applications and timed hot water
applications.
This recommendation applies to RAUPEX white UV shield pipes for
cold water and intermittent hot water applications (25% @ 140°F,
75% @ 73°F) and for timed hot water recirculation systems for up to
12 hours per day (50% @ 140°F, 50% @ 73°F). The ASTM F876
standard includes designation codes for these applications which are
included on the print line of RAUPEX pipes.
4.8 Ultraviolet Resistance
All polymers are susceptible to damage from exposure to the
ultraviolet (UV) radiation in sunlight. PEX pipes can be designed to
protect against short-term UV damage, but after some time, UV
radiation will reduce the lifetime of the pipe. The extent of the
reduction depends on factors such as temperature, pressure and
chlorination levels in potable water. Excessive UV exposure will reduce
the lifetime of the PEXa pipe.
9
REHAU has performed extensive testing of RAUPEX pipes exposed to
UV, leading to the maximum UV exposure times expressed in
accumulated days. Once the pipes leave the manufacturing plant, any
exposure to UV, including transportation and storage, is part of the
accumulated exposure time.
Although ASTM F876 only categorizes up to 6 months of UV resis-
tance (Material Designation Code = 3306), REHAU has tested and
certified RAUPEX white UV shield pipe according to ASTM F2657 for
the following maximum UV exposure period:
- RAUPEX white UV shield pipe: Maximum exposure time of one year
accumulated
RAUPEX pipes must be kept in the original packaging until the time of
installation. RAUPEX must not be stored outdoors and is not designed
for permanent outdoor exposure (with the exception of non-exposed
buried applications).
NOTICE
Failure to follow maximum UV exposure limits may damage the pipe
resulting in leaks and operational failures, and will negate any
warranty provided by REHAU for RAUPEX pipes.
4.9 Bend Radius
RAUPEX pipe may be bent, even when cold. REHAU support bends
can assist to create tight bends without kinking. The typical bend
radius used by the installer is 8X the OD. The minimum bend radius is
5X the OD for cold bends. For an even smaller bend radius, the pipe
may be heated with a heat gun and bent to no less than 3X the OD. If
a tighter bend radius is required, the designer should consider using a
smaller diameter pipe.
Table 4.4: RAUPEX Bend Radius
Bend Radius in (mm)
Pipe Size Typical 8X OD Min. Cold 5X OD Min. Heated 3X OD
3/4 in 7.0 (178 ) 4.375 (111) 2.625 (67)
1 in 9.0 (229) 5.625 (143) 3.375 (86)
1 1/4 in 11.0 (279) 6.875 (175) 4.125 (105)
1 1/2 in 13.0 (330) -- --
2 in 17.0 (4 32 ) -- --
4.10 Chemical Compatibility
While RAUPEX pipes are resistant to many chemicals that are used in
typical residential fire sprinkler applications, there are some chemicals
that may damage the pipe.
Chemicals that may be damaging include (but are not limited to):
- Adhesives
- Oil or petroleum-based products
- Paints
- Solvents
- Oxidizing agents
- Disinfectants
- PVC glues
- Solvents and cements
Many factors, such as exposure time, temperature, pressure and other
operating parameters, can influence the performance of a pipe that is
exposed to a chemical. To determine the impact of a particular
chemical, short- and long-term pressure testing may be required. In
some cases, a pipe may be resistant to short-term exposure to the
chemical, but not resistant to continuous exposure. Each chemical
must be evaluated individually. It is the responsibility of the installing
contractor to verify chemical compatibility of any chemicals that may
come into contat with the polymer material.
4.11 Freeze Break Resistance
The flexibility of the RAUPEX pipe allows it to expand as water freezes
in the pipe as long as the pipe has room to expand. When the water
thaws, the pipe returns to its original shape. If the pipe is not allowed
to expand (e.g., it is encased in concrete), it may burst.
NOTICE
Designers and installers must take precautions as per the guidelines
defined in NFPA 13D to ensure that pipes do not freeze. Frozen pipes
may burst resulting in leaks and operational failures.
4.12 Condensation
Condensation occurs on pipes when the surface temperature is lower
than the dew point of the environment. This is typically a problem for
metallic cold water piping. PEX pipe has lower thermal conductivity
(0.41 W/m°K) than copper (401 W/m°K) resulting in less heat loss to
the surface and greater resistance to condensation or sweating.
10
5. EVERLOC+ COMPRESSION-SLEEVE FITTINGS
5.1 Fitting Scope
The EVERLOC+ compression-sleeve system is a cold-expansion PEXa
fitting system that is available in polymer and lead-free (LF) brass and
is assembled with a specially designed PEXa compression sleeve. The
fitting is designed specifically for use with RAUPEX pipe and must
only be assembled with the EVERLOC+ compression-sleeve tools.
EVERLOC+ fittings for residential fire sprinkler applications are
available in 3/4 to 2 in. sizes and are listed for use with RAUPEX white
UV shield pipe (3/4 to 2 in.) manufactured in accordance with ASTM
F876.
For a detailed description of the REHAU system components, refer to
the REHAU Building Solutions Product Catalog (855.312).
5.1.1 Fitting Features
EVERLOC+ polymer and lead-free (LF) brass fittings have the
following features:
1. Four sealing edges
2. Pipe stop
3. Fitting collar
4. Tool jaw body
Fig. 5.1: EVERLOC+ fitting features
5.1.2 Fitting and Sleeve Markings
All polymer fittings include the following marks for identification
OR
Fig. 5.2: Fitting size marking (e.g., 3/4”)
Fig. 5.3: Batch code (e.g., production date)
All LF brass fittings are marked "REHAU"
All sleeves include the following
marks for identification
- Sleeve size (e.g., 3/4")
- Batch code for production date
Fig. 5.4: Sleeve markings
1
2
4
3
11
5.1.3 Polymer Fittings
EVERLOC+ polymer fittings are available in couplings, tees, elbows,
multi-port tees and plugs. All polymer fittings are produced from a
polyphenylsulfone (PPSU) material. See also REHAU Technical Bulletin
TB265 EVERLOC+ Polymer Fitting Material - PPSU.
5.1.4 Lead Free (LF) Brass Fittings
EVERLOC+ LF brass fittings are available as couplings, tees, elbows,
plugs and transition fittings to NPT thread and copper solder
connections. All metal fittings are produced from ECO BRASS
®
(UNS
69300 or CW 724R). See also REHAU Technical Bulletin TB264
EVERLOC+ Lead-free Brass Fitting Material.
Fig. 5.5: EVERLOC+ polymer and LF brass fittings
5.1.5 PEXa Compression Sleeves
EVERLOC+ compression sleeves are produced using a specially
formulated PEXa material and are designed specifically for use with
EVERLOC+ fittings and RAUPEX pipe. EVERLOC+ compression
sleeves have the following features:
- Co-extruded platinum-colored PE coating
- Squarely cut ends that can be slid over the pipe in either direction
- Grooved and roughened inside surface for locking the sleeve into
place once slid over the pipe and fitting
Fig. 5.6: EVERLOC+ PEXa compression sleeves
5.1.6 Certifications
The EVERLOC+ compression-sleeve fitting system is certified to the
following standards:
- UL 1821 Standard for Thermoplastic Sprinkler Pipe and Fittings for
Fire Protection Service
- ASTM F877, Standard Specification for Crosslinked Polyethylene
(PEX) Hot- and Cold-Water Distribution Systems
- NSF/ANSI 14, Plastic Piping System Components and Related
Materials
- NSF/ANSI 61, Drinking Water System Components – Health Eects
- NSF/ANSI 372, Drinking Water System Components – Lead Content
- CSA B137.5, Crosslinked polyethylene (PEX) Tubing Systems for
Pressure Applications
12
5.1.7 Equivalent Length of Fittings
It is common practice for designers to convert the pressure drop
across fittings to an average equivalent length of pipe. These
equivalent lengths are added to the total pipe length. Designers can
calculate total pressure loss using this adjusted piping system length.
Table 5.1: Equivalent Length of Fittings
Couplings
Fitting Description Equivalent Length (ft)
3/4 x 3/4 in. EVERLOC+ Polymer Coupling 0.8
1 x 3/4 in. EVERLOC+ Polymer Coupling 2.7
1 x 1 in. EVERLOC+ Polymer Coupling 1.1
1 1/4 x 1 in. EVERLOC+ Polymer Coupling 4.0
1 1/4 x 1 1/4 in. EVERLOC+ Polymer Coupling 2.0
1 1/2 x 1 in. EVERLOC+ Polymer Coupling 4.8
1 1/2 x 1 1/2 in. EVERLOC+ Polymer Coupling 2.0
2 x 1 in. EVERLOC+ LF Brass Coupling 5.2
2 x 1 1/4 in. EVERLOC+ LF Brass Coupling 5.3
2 x 1 1/2 in. EVERLOC+ LF Brass Coupling 6.1
2 x 2 in. EVERLOC+ Polymer Coupling 2.2
Elbows (PEX to PEX)
Fitting Description Equivalent Length (ft)
3/4 x 3/4 in. EVERLOC+ Polymer Elbow 7.0
1 x 1 in. EVERLOC+ Polymer Elbow 10.7
1 1/4 x 1 1/4 in. EVERLOC+ Polymer Elbow 14.2
1 1/2 x 1 1/2 in. EVERLOC+ Polymer Elbow 16.0
2 x 2 in. EVERLOC+ Polymer Elbow 24.2
Elbows (PEX to transition)
Fitting Description
Equivalent
Length (ft)
3/4 x 3/4 in. C Female EVERLOC+ LF Brass Elbow 7.1
3/4 x 3/4 in. C Male EVERLOC+ LF Brass Elbow 7.4
3/4 x 3/4 in. MPT EVERLOC+ LF Brass Drop Ear Elbow 7.5
Adapters (PEX to copper)
Fitting Description
Equivalent
Length (ft)
3/4 x 1 in. C Female EVERLOC+ LF Brass Adapter 3.9
3/4 x 3/4 in. C Female EVERLOC+ LF Brass Adapter 2.7
3/4 x 3/4 in. C Male EVERLOC+ LF Brass Adapter 2.6
1 x 1 in. C Female EVERLOC+ LF Brass Adapter 3.5
1 x 1 in. C Male EVERLOC+ LF Brass Adapter 3.3
1 1/4 x 1 1/4 in. C Female EVERLOC+ LF Brass Adapter 4.1
1 1/4 x 1 1/4 in. C Male EVERLOC+ LF Brass Adapter 4.3
1 1/2 x 1 1/2 in. C Female EVERLOC+ LF Brass Adapter 5.3
1 1/2 x 1 1/2 in. C Male EVERLOC+ LF Brass Adapter 5.4
2 x 2 in. C Female EVERLOC+ LF Brass Adapter 7.0
2 x 2 in. C Male EVERLOC+ LF Brass Adapter 6.9
Adapters (PEX to MPT/FPT)
Fitting Description
Equivalent
Length (ft)
3/4 x 3/4 in. FPT EVERLOC+ LF Brass Adapter 2.8
3/4 x 3/4 in. MPT EVERLOC+ LF Brass Adapter 3.4
3/4 x 1 in. MPT EVERLOC+ LF Brass Adapter 4.3
1 x 1 in. FPT EVERLOC+ LF Brass Adapter 3.6
1 x 1 in. MPT EVERLOC+ LF Brass Adapter 3.8
1 1/4 x 1 1/4 in. MPT EVERLOC+ LF Brass Adapter 4.9
1 1/2 x 1 1/2 in. MPT EVERLOC+ LF Brass Adapter 5.9
2 x 2 in. MPT EVERLOC+ LF Brass Adapter 7.3
Tees
Fitting Description
Equivalent
Length (ft)
RUN
Equivalent
Length (ft)
BRANCH
3/4 x 3/4 x 3/4 in. EVERLOC+ Polymer Tee 1.2 7.6
3/4 x 3/4 x 1 in. EVERLOC+ Polymer Tee - 6.8
1 x 1 x 1/2 in. EVERLOC+ Polymer Tee 1.6 3.9
1 x 3/4 x 3/4 in. EVERLOC+ Polymer Tee 2.8 6.5
1 x 3/4 x 1 in. EVERLOC+ Polymer Tee 3.1 10.9
1 x 1 x 3/4 in. EVERLOC+ Polymer Tee 1.2 6.7
1 x 1 x 1 in. EVERLOC+ Polymer Tee 1.6 10.6
1 1/4 x 1 x 1 in. EVERLOC+ Polymer Tee 3.8 9.7
1 1/4 x 1 x 1 1/4 in. EVERLOC+ LF Brass Tee 4.3 9.6
1 1/4 x 1 1/4 x 1 in. EVERLOC+ Polymer Tee 2.3 10.1
1 1/4 x 1 1/4 x 1 1/4 in. EVERLOC+ Polymer Tee 2.2 14.4
1 1/2 x 1 x 1 in. EVERLOC+ LF Brass Tee 5.5 7. 9
1 1/2 x 1 x 1 1/2 in. EVERLOC+ LF Brass Tee 5.6 12.4
1 1/2 x 1 1/4 x 1 in. EVERLOC+ LF Brass Tee 4.4 8.1
1 1/2 x 1 1/4 x 1 1/4 in. EVERLOC+ LF Brass Tee 4.5 9.5
1 1/2 x 1 1/4 x 1 1/2 in. EVERLOC+ LF Brass Tee 4.3 10.9
1 1/2 x 1 1/2 x 1 in. EVERLOC+ Polymer Tee 2.2 9.1
1 1 2 x 1 1/2 x 1 1/4 in. EVERLOC+ LF Brass Tee 1.7 9.6
1 1/2 x 1 1/2 x 1 1/2 in. EVERLOC+ Polymer Tee 2.6 17.0
2 x 1 1/4 x 2 in. EVERLOC+ LF Brass Tee 6.7 14.9
2 x 1 1/2 x 1 in. EVERLOC+ LF Brass Tee 6.2 7.7
2 x 1 1/2 x 1 1/4 in. EVERLOC+ LF Brass Tee 6.3 9.5
2 x 1 1/2 x 1 1/2 in. EVERLOC+ LF Brass Tee 6.4 11.2
2 x 1 1/2 x 2 in. EVERLOC+ LF Brass Tee 6.5 14.6
2 x 2 x 1 in. EVERLOC+ Polymer Tee 3.2 9.0
2 x 2 x 1 1/4 in. EVERLOC+ LF Brass Tee 1.9 9.7
2 x 2 x 1 1/2 in. EVERLOC+ LF Brass Tee 1.9 10.9
2 x 2 x 2 in. EVERLOC+ Polymer Tee 4.0 25.3
13
5.2 Fitting Assembly
Before starting the installation process, read the EVERLOC+
Compression-sleeve System Product Instructions (855.724).
Assembling the EVERLOC+ compression-sleeve system requires the
use of the EVERLOC+ compression-sleeve tools. Only make
EVERLOC+ compression-sleeve joints with these tools. Refer to
EVERLOC+ Power Tool Product Instruction Manual (855.725),
EVERLOC+ XL Power Tool Product Instruction Manual (855.728) and
EVERLOC+ XL Expander Tool Product Instruction Manual (855.729) for
a complete understanding of operation, care and use of the
EVERLOC+ compression-sleeve tools.
WARNING
Read the instruction manual for the EVERLOC+
compression-sleeve tools before use and follow all
safety precautions - improper use can cause serious
personal injury.
WARNING
To reduce the risk of permanent eye injury, always
wear close-fitting protective eye wear with side
protection. Eye wear must be impact-rated and
marked as complying with ANSI Z87.
NOTICE
Use only EVERLOC+ compression-sleeve tools for assembly and
installation. Use of other tools will result in an improperly assembled
joint, which may result in leaks and property damage.
The basic process of assembling an EVERLOC+ compression-sleeve
joint is as follows:
- Make a clean, square cut of the RAUPEX pipe using a RAUPEX
cutter
- Slide the EVERLOC+ compression sleeve over the RAUPEX pipe
ensuring the sleeve is a minimum of two times the length of the
sleeve from the end of the cut pipe to allow for expansion of the pipe
only
- Expand the RAUPEX pipe twice, ensuring the expander head is
rotated 1/2 of one expander head segment between expansions,
using the EVERLOC+ compression-sleeve tools
- Insert the EVERLOC+ compression-sleeve fitting into the expanded
end of the RAUPEX pipe so that the pipe is touching the pipe stop on
the fitting
- Compress the EVERLOC+ compression sleeve over the RAUPEX pipe
and EVERLOC+ compression-sleeve fitting using the EVERLOC+
compression-sleeve tools
Required assembly tools include:
- RAUPEX cutter
- EVERLOC+ compression-sleeve tools
- EVERLOC+ expander heads and compression jaws
5.3 Installation Considerations
Some precautions and additional considerations that should be taken
when installing the system.
5.3.1 EVERLOC+ Fitting Removal
- EVERLOC+ LF brass fittings CAN be reused, as long the rib area
was not damaged during removal.
- EVERLOC+ polymer fittings CANNOT be reused and should be
discarded immediately.
- EVERLOC+ compression sleeves CANNOT be reused and should be
discarded immediately.
Fig. 5.7: DO NOT cut the EVERLOC+ compression sleeve from finished joint
Fig. 5.8: DO NOT cut RAUPEX pipe from fitting
5.3.1.1 Fitting Removal of Completed Joint (LF brass ONLY)
If it is required to remove the LF brass fitting or disassemble the LF
brass compression-sleeve joint, use the following procedure:
If the fitting has been inserted into the pipe and the sleeve has been
compressed, safely hold the fitting while it is heated. Be careful not to
damage the fitting with the tool.
1. Heat the sleeve directly using a heat gun.
2. Rotate the joint several times while heating.
3. Remove heat and use pliers to pull the sleeve o the fitting, then
immediately pull the fitting out of the pipe.
14
WARNING
- Do not use open flames to disassemble the joint. Open flames can
cause injury or property damage.
- Never use a torch, open flame or heat gun on a pressurized system.
- Never rework a connection that is under pressure. Depressurize the
system, cut out connection and replace.
Fig. 5.9: Heating EVERLOC+ compression sleeve with heat gun
Fig. 5.10: Removing pipe from LF brass fitting
For re-assembly of a joint, the following should be considered:
- The end of the pipe where the previous fitting had been installed
must be completely cut o prior to making a new joint. Cutting o a
minimum of 3 in (approximately 75 mm) is recommended.
Fig. 5.11: Cut o 3 in. of pipe from end prior to making new joint
5.3.1.2 Fitting Removal of Partially Completed Joint (LF Brass
ONLY)
If the fitting has been inserted into the pipe, but the sleeve has not
been compressed, attempt to remove it without damaging the fitting.
If fitting cannot be easily removed, heat 1 to 1 1/2 in (25 to 38 mm) of
the pipe that covers the fitting and pull the fitting out of the pipe.
5.3.2 Protecting EVERLOC+ Joints
REHAU permits EVERLOC+ compression-sleeve joints (polymer and
LF brass) to be buried or concealed. REHAU recommends that
threaded connections never be buried or concealed as they must be
accessible for periodic inspection, per prevailing local codes.
The requirement to wrap an EVERLOC+ joint can depend on many
factors including location and the presence of other materials that
contact or can come in contact with the joint.
When wrapping an EVERLOC+ joint, the following is required:
- Wrap the joint, ensure minimum of 50% overlap of the tape
- Avoid wrinkles or kinks in the tape and ensure the joint is completely
covered, extending on to the pipe as necessary
- Indicate the location of each joint as required on the “as-built”
drawings
Fig. 5.12: REHAU Protective Tape, Red Fig. 5.13: Linerless Rubber Tape, Black
Note: Use only REHAU recommended protective tapes referenced in
REHAU Technical Bulletin TB266 Protecting EVERLOC+ Joints. Do not
use other types of tapes (e.g., duct tape, standard electrical tape) to
wrap the joint, as chemicals in the adhesive may not be compatible
with the PPSU fitting material or the PEXa pipe.
Note: Never use heat shrink tubing (e.g., RAUCROSS) to wrap the
joint, as the high temperatures produced from a heat gun will soften
the pipe and may cause it to pull away from the fitting.
Fig. 5.14: DO NOT use heat shrink tubing for EVERLOC+ joints
5.3.2.1 Concealed in Inaccessible Locations
When EVERLOC+ joints are concealed but are still in open air spaces
(e.g., behind drywall), it is not necessary to wrap the joint. However,
the installer should ensure that the fitting does not come in contact
with chemicals (e.g., PVC glues, solvents and cements) that could
damage the fitting material.
15
5.3.2.2 Buried Directly in Concrete Slab:
When burying an EVERLOC+ polymer joint directly in a concrete slab,
it is not necessary to wrap the joint. However, there are some additives
in concrete that could potentially damage the fitting material, and in
this case, wrapping is recommended. EVERLOC+ LF brass fittings
buried directly in a concrete slab must be wrapped.
5.3.2.3 Buried in a Sub-base or Underground in Soil:
In these instances, the joint must be wrapped.
5.3.2.4 With Foaming Agents:
Foaming agents and solvents in closed-cell foam insulation kits can
damage the PPSU fitting material. Therefore, it is necessary to wrap
polymer fittings in a protective tape to protect from polyurethane
foams.
5.3.3 Pressure Testing
The compression-sleeve joint is ready for immediate pressure testing
and use after completion of the assembly process. There is no wait
time for the system to be put into service. See Section 7.4 for REHAU
pressure test procedures.
5.3.4 Pressure and Temperature Ratings
The maximum temperature and pressure ratings of the REHAU
residential fire sprinkler system are in accordance with NFP 13D,
ASTM F877 and CSA B137.5 for SDR9 PEX, as defined in
Section 4.4.
5.3.5 Ultraviolet Resistance
The fittings and sleeves must never be stored in areas exposed to
direct UV light or stored outside of the original cardboard packaging.
In addition, the system is not intended for permanent outdoor
applications or in areas with continuous UV exposure.
5.3.6 Freeze Break Resistance
The flexibility of RAUPEX pipe allows it to expand as water freezes in
the pipe as long as the pipe has room to expand. When the water
thaws, the pipe returns to its original shape. However, this flexibility
does not ensure the integrity of the joint. If the pipe is not allowed to
expand (e.g., it is encased in concrete), it may burst.
NOTICE
Designers and installers must take precautions as per the guidelines
defined in NFPA 13D to ensure that pipes do not freeze. Frozen pipes
may burst resulting in leaks and operational failures.
5.3.7 Chlorine Resistance
EVERLOC+ compression-sleeve joints have a chlorine resistance
rating based on the ratings of RAUPEX pipe, as defined in Section 4.7.
5.3.8 Stress Corrosion Resistance
EVERLOC+ LF brass fittings have been tested in accordance with
UL1821 and NSF/ANSI 14 and comply with the requirement for stress
corrosion resistance. However, fittings should not be exposed to
harmful chemicals or aggressive water conditions that could result in
operational failures.
5.3.9 Chemical Compatibility
There are certain chemicals that can damage the EVERLOC+
compression-sleeve system. This applies to external exposure of
chemicals and to the transport of such chemicals by the piping
system.
Chemicals that may damage the compression-sleeve system include
(but are not limited to):
- Adhesives and tapes other than those recommended by REHAU
- Oil/petroleum-based products
- Paints, solvents
- Oxidizing agents (e.g., bleach)
- Disinfectants (e.g., separate dosing unit integrated into building
distribution system)
- PVC glues, solvents and cements
Fig. 5.15: DO NOT use harmful chemicals near EVERLOC+ fittings
Many factors, such as exposure time, temperature, pressure and
other operating parameters, can influence the performance of a
system that is exposed to a chemical. To determine the impact of a
particular chemical, short- and long-term pressure testing may be
required. In some cases, a system may be resistant to short-term
exposure to the chemical, but not resistant to continuous exposure.
Each chemical must be evaluated individually. It is the responsibility of
the installing contractor to verify chemical compatibility of any
chemicals that may come into contact with the polymer material.
16
5.3.10 Copper Soldering
Proper soldering techniques must be followed when soldering all
compression-sleeve fittings according to the Copper Development
Association (CDA) Handbook:
- The surface of the fitting soldering area must be properly cleaned for
a good solder connection. Applying flux is not considered sucient
cleaning for the soldering area. Using a proper sanding or brush
technique is necessary to remove the surface oxides. In order to
prevent further formation of oxides, the flux should be applied
immediately after the cleaning process. A proper flux that is
compatible with the brass alloy must be used.
- Care must be taken to not overheat the soldering surface as this can
lead to the formation of oxides preventing good adhesion of the
solder material. It is imperative that the fitting is heated evenly
around the entire surface so as to not overheat one particular area.
- All completed solder joints must be tested for joint integrity following
the procedures prescribed by prevailing local codes.
When soldering an LF brass EVERLOC+ fitting:
- The fitting must be soldered onto the copper first.
- The solder joint must be allowed to cool to ambient room
temperature prior to making an EVERLOC+ connection.
- Never solder after EVERLOC+ connection has been made.
5.4 EVERLOC+ Compression-sleeve Tools
Assembling the EVERLOC+ compression-sleeve system requires the
use of the EVERLOC+ compression-sleeve tools. Only make
EVERLOC+ compression-sleeve joints with these tools.
Before use, read and understand the following safety symbols which
are found on the EVERLOC+ compression-sleeve tools.
Safety Alert Symbol – To reduce the risk of injury, follow
the specified safety instructions.
Read and follow all safety precautions in the instruction
manual. Improper use can lead to serious personal injury
or property damage.
To reduce the risk of serious eye injury, always wear
proper eye protection.
Risk of electric shock. Never operate the power tool in
damp or wet conditions. Never expose to rain or
submerge in water or other liquids. Never operate the
power tool near wires or cables carrying electric current.
To reduce the risk of severe personal injury, including
crush and laceration injury, keep fingers, hands and all
parts of your body away from the expander head,
hydraulic slide and compression jaws during operation.
NOTICE
Use only EVERLOC+ compression-sleeve tools for assembly and
installation. Use of other tools will result in an improperly assembled
joint, which may result in leaks and property damage.
5.4.1 EVERLOC+ Power Tool
For assembly of EVERLOC+ fittings up to 1 in. Use the
EVERLOC+ power tool. Refer to EVERLOC+ Power Tool Product
Instruction Manual (855.725) for a complete understanding of
operation, care and use of the tool.
Fig. 5.16: EVERLOC+ power tool
EVERLOC+ power tool standard kit:
- EVERLOC+ power tool
- Expansion adapter
- 1/2, 3/4 and 1 in. EVERLOC+ expander heads (quick change)
- 1/2, 3/4 and 1 in. EVERLOC+ compression jaws
- DEWA LT
®
12V Li-ion battery (DCB127) (2 batteries per kit)
- DEWA LT 12V/20V Li-ion charger 120VAC (DCB107)
- DEWALT 12V/20V Li-ion Battery Charger Instruction Manual
- Pipe cutter
- Lubricant
- Cleaning brush
- Tool case
- EVERLOC+ Power Tool Product Instruction Manual
Fig. 5.17: EVERLOC+ power tool standard kit
17
5.4.2 EVERLOC+ XL Power Tool 1 1/4 to 2 in.
Assembling the EVERLOC+ compression-sleeve system with
diameters of 1 1/4 through 2 in. requires the use of the EVERLOC+
XL power tool. Refer to the EVERLOC+ XL Power Tool Product
Instruction Manual (855.728) for a complete understanding of
operation, care and use of the tool.
Fig. 5.18: EVERLOC+ XL power tool
EVERLOC+ XL power tool standard kit:
- EVERLOC+ XL power tool
- Expansion adapter
- 1 1/4, 1 1/2 and 2 in. EVERLOC+ expander heads (quick change)
- 1 1/4, 1 1/2 and 2 in. EVERLOC+ compression jaws
- MAKITA
®
18V Li-ion battery (BL1840B) (2 batteries per kit)
- MAKITA 18V Li-ion charger 120VAC (DC18RC)
- MAKITA 18V Li-ion Battery Charger Instruction Manual
- Pipe cutter
- Lubricant
- Cleaning brush
- Tool case (black latches)
- EVERLOC+ XL Power Tool Product Instruction Manual
Fig. 5.19: EVERLOC+ XL power tool standard kit
5.4.3 EVERLOC+ XL Expander Tool 1 1/4 to 2 in.
In addition to the EVERLOC+ XL power tool, the EVERLOC+ XL
expander tool can be used for the expansion steps of the 1 1/4 to 2 in.
fitting assembly process. Use of this tool in addition to the XL power
tool allows for greater eciency in some installation situations. Refer
to the EVERLOC+ XL Expander Tool Product Instruction Manual
(855.729) for a complete understanding of operation, care and use of
the tool.
Fig. 5.20: EVERLOC+ XL expander tool Fig. 5.21: EVERLOC+ XL expander tool
standard kit
EVERLOC+ XL expander tool standard kit:
- EVERLOC+ XL expander tool
- MAKITA 18V Li-ion battery
- MAKITA 18V Li-ion Battery Charger Instruction Manual
- Lubricant
- Cleaning brush
- Tool case (gray latches)
- EVERLOC+ XL Expander Tool Product Instruction Manual
18
5.5 Fire Sprinklers
An automatic sprinkler is a fire suppression or control device that
operates automatically when its heat-actuated element is heated to its
thermal rating or above. When activated, water discharges over the
specific area on fire.
Only residential sprinklers that have been tested and listed for
residential fire protection service may be used. The sprinklers must be
installed in accordance with their listing and limitations.
NOTICE
Nothing in this manual supersedes national or local code requirements
or the recommendations of other manufacturers regarding their
components. Observe all applicable national, state and local laws,
regulations, standards, codes and ordinances. If you believe REHAU
product information conflicts with applicable code requirements,
industry standards, or the recommendations of other manufacturers
regarding their components, contact the REHAU distributor in your
area and consult with the building authority having jurisdiction before
installation.
There are four types of recommended sprinklers: flat plate concealed
pendent, domed concealed pendent, recessed pendent and horizontal
sidewall.
5.5.1 Flat Plate Concealed Pendent Sprinklers
Flat plate concealed pendent sprinklers have a cover plate that is
installed flush to the ceiling. During fire conditions, when the tempera-
ture around the sprinkler approaches its operating temperature, the
cover plate detaches and falls away.
Continued heating of the now exposed sprinkler causes the sprinkler’s
heat responsive element to disengage, releasing the sealing assembly,
allowing water to flow.
Fig. 5.22: Flat plate concealed pendent sprinkler
WARNING
Do not paint the cover plate of the concealed sprinkler. Paint may
interfere with the operation of the sprinkler, preventing it from
achieving its life safety function.
5.5.2 Domed Concealed Pendent Sprinklers
Domed concealed pendent sprinklers have a cover plate assem-
bly that, when installed, protrudes below the ceiling. During fire
conditions, when the temperature around the sprinkler approaches its
operating temperature, the cover plate detaches and falls away.
Continued heating of the now exposed sprinkler causes the
sprinkler’s heat responsive element to disengage releasing the sealing
assembly. This allows water to flow from the sprinkler.
Fig 5.23: Domed concealed pendent sprinkler
WARNING
Do not paint the cover plate of the concealed sprinkler. Paint may
interfere with the operation of the sprinkler, preventing it from
achieving its life safety function.
5.5.3 Recessed Pendent Sprinklers
Recessed pendent sprinklers are visible in the ceiling and do not have
a cover plate. During fire conditions, continued heating
of the exposed sprinkler causes the heat responsive element to
disengage. This allows water to flow from the sprinkler.
Fig 5.24: Recessed pendent sprinkler
19
5.5.4 Horizontal Sidewall Sprinklers
Horizontal sidewall sprinklers are visible in the wall and do not have a
cover plate. During fire conditions, continued heating
of the exposed sprinkler causes the heat responsive element to
disengage. This allows water to flow from the sprinkler.
Fig 5.25: Horizontal sidewall sprinkler
20
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Rehau FIREPEX Residential Fire Sprinkler System Installation guide
- Category
- Water heaters & boilers
- Type
- Installation guide
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